Windows Vista Home Premium 64-bit $99.99 - DX10; etc.
Total comes to $1224.96 w/shipping and tax. I am also looking to purchase a $200 22in Acer monitor, so I will most likely be gaming at around 1680x1050 which is why I'm not going with a dual-GPU system at the moment.
I am deciding between the Antec 900, Antec 1200, and the CoolerMaster Cosmos. I want to be set on cooling (will only do mild overclocking, if any). These must be included in the budget. Also, are there any components worth waiting for? I mean really waiting for? I was going to do this build at the beginning of the year, but held off for the new GPUs... I don't want to wait forever
Very solid build. I can't really see anything that needs to be changed. You could go this the GIGABYTE GA-EP45-DS3R. Don't trust newegg customer comments. Or theASUS P5Q, although it only has one PCIex16. Including shipping it's only $10 more than the other two. The ASUS P5Q Pro would keep the crossfire option open, but it's $20 more than the Foxconn.
I think I'd also choose Gigabyte, Biostar, or Asus over Foxconn. By the time you get your monitor, you'll be near your budget. Consider the CoolerMaster RC-690 for your case. Cooling is excellent, and it includes three 120mm fans. It costs less than the others, possibly at buy.com.
If you get the P5Q Pro that Wanker linked, you might start with a single 4850 now to make budget, and add a second one for Crossfire later.
Definitely go with Gigabyte over Foxconn. While the Foxconn hardware is alright their support really sucks. Their website is a lot more helpful then it use to be though. Anyway Gigabyte definitely makes a better product and has better support. I'd say go with MSI, Gigabyte, Asus, DFI, and even ASRock over Foxconn.